UPDATE 3-Slain Salvadoran Archbishop Romero to be made a saint
* Romero's sainthood procedure stalled under two previous popes
* He was killed while saying Mass in hospital chapel
* Pope Francis, also from Latin America, re-booted it
* Sainthood ceremony expected for later this year in Vatican
* (Adds reaction from El Salvador)
VATICAN CITY, March 7 (Reuters) - Salvadoran Archbishop Oscar Romero, a champion of the poor who became a human rights icon in Latin America when he was killed by a right-wing death squad in 1980, will be made a Roman Catholic saint.
The Vatican said in a statement on Wednesday that Pope Francis had given final approval to several sainthoods, including for Romero, and the late Pope Paul VI, who reigned from 1963 to 1978. Francis personally announced Pope Paul's canonisation last month.
Romero's path to sainthood had stalled under two previous popes, reflecting concerns by some that he was overly political. It was revived by Francis who is also from Latin America and has made defense of the downtrodden a hallmark of his five-year pontificate.
Romero, who had often denounced repression and poverty in his homilies, was shot dead on March 24, 1980, as he celebrated Mass in a hospital chapel in San Salvador, the capital of the impoverished Central American country of El Salvador.
"The long delay in recognizing the obvious fact that Romero was obviously a martyr was shameful," said Father James Martin, a U.S. author and editor-at-large of the Jesuit magazine America, adding that many saints had not been understood in their own times.
Martin, writing on Twitter, called the pope's decision "an immense step forward for the Church."
Romero's murder was one of the most shocking in the long conflict between a series of U.S.-backed governments and leftist rebels in which thousands were killed by right-wing and military death squads.
El Salvador’s government, headed by a former leader of the leftist guerrillas, said in a statement that Romero had left an "invaluable legacy" of work for the neediest and that the canonisation was a tribute to his devotion and sacrifice.
The civil war claimed some 75,000 lives before it ended with a peace agreement in 1992.
No one was ever brought to justice for his killing but last year a Salvadoran judge reopened the case. The main suspect is a former soldier whose case was reopened after the country's constitutional court repealed a previous amnesty.
Romero was beatified, or declared a "blessed" of the Church, in 2015 after a ruling that he was a martyr killed in hatred of the faith. That ceremony in San Salvador brought together former Marxist guerrillas and their former enemies.
Francis ruled that Romero could be declared a saint after a Vatican theological and medical commission approved a miracle attributed to him.
The Church teaches that only God performs miracles but that saints who are believed to be with God in heaven intercede on behalf of people who pray to them. A miracle is usually the medically inexplicable healing of a person.
No date was given for the sainthood ceremony, which is expected to take place this year, most likely at the Vatican. (Additional reporting by Crispian Balmer in Rome and Nelson Renteria in San Salvador Editing by Matthew Mpoke Bigg and Susan Fenton)
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